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    • 41. 发明专利
    • Improvements in hinges, particularly hinges for screen printing frames
    • GB622802A
    • 1949-05-06
    • GB965047
    • 1947-04-11
    • JOHN WILLIAM HARRISON
    • B41F15/36
    • 622,802. Hinges. HARRISON, J. W. April 11, 1947, No. 9650. [Class 65 (ii)] [Also in Group XVI] A hinge comprises a socket member 2 carrying a hinge pin 4 and pivoted at 12 to a mounting member 1 about an axis normal to the axis of the hinge pin, screw means adapted to adjust the hinge pin axially, and screw means adapted to adjust the socket member in relation to the mounting member along a path normal to both the aforesaid axes. The hinge pin, a screwthreaded end 4a of which co-operates with an internally screw-threaded plate 5 attached to the mounting member, may be rotated by a tommy bar 8 and locked by a locknut 7. The other end of the hinge pin carries rotatably a plate 9. The pivot 12 projects from the under surface of the socket member and engages a slot 11 formed in the mounting member. Screws 13 and 14 rotatably mounted on the latter member bear respectiveiy at their inner ends on surfaces 17 and 18 formed on the socket member concentric with the axis of the pivot 12. The socket and mounting members are clamped together in adjusted position by means of a stud 19 and nut 21, the stud passing through a clearance slot 20 formed in the socket member.
    • 42. 发明专利
    • Improvements in the manufacture of polymeric nitrogenous derivatives
    • GB538120A
    • 1941-07-22
    • GB117540
    • 1940-01-19
    • WILLIAM HARRISON
    • C08G69/28
    • 538,120. Polymeric nitrogenous derivatives. HARRISON, W. Jan. 19, 1940, No. 1175. [Class 2 (iii)] High molecular weight long-chain nitrogenous compounds are prepared by bringing together a diamine or a polyamine, or an oxygen-linked chain diamine or a sulphur-linked chain diamine, and a carbothiolic acid, and heating the ingredients or the reaction products of the ingredients to a temperature below 180‹C., with or without subsequent heating to carry further the polymerization of the compound. The carbothiolic acid itself may have an oxygen-linked or sulphur-linked chain. Alternatively, the'starting materials may be amine derivatives containing, at one end of the molecule, a terminal - SH group, and at the other end a -NH 2 or - NH group, the terminal groups being separated by at least one carbon atom. When the basic constituents are in sufficient excess to prevent the retention of terminal -COSH groups, and the reactions are carried out in the absence of air or oxidizing agents, the compounds formed are usually identical with those formed when dibasic carboxylic acids are used instead of carbothiolic acids. When the acid constituents are in excess, there remain terminal -COSH groups which may be reacted with oxidizing agents, aldehydes &c., to modify the products. According to examples : (1) the salt prepared from hexamethylene diamine and di-thio-adipic acid is dissolved in mixed xylenols and heated for 2 hours at 130‹C. in an atmosphere of nitrogen. The temperature is then raised to 150‹C. and heating continued for another 2-4 hours ; (2)the salt from decamethylene diamine and thioldiglycollic acid is heated in meta-cresol for 4-6 hours at from 130-150‹C., and the solvent then removed by distillation in vacuo; (3) the salt from pentamethylene diamine and dithio-thiolglycollic acid is treated as in Example 2 ; (4) diamino diethyl ether is substituted for decamethylene diamine in Example 2 ; (5) diamino triethyl ether is substituted for pentamethylene diamine in Example 3 ; (6) the salt from diethylen triamine and dithio-azelaic acid is heated in mixed xylenols for 2 hours at 160‹C. in an atmosphere of nitrogen. The temperature is then raised to 140-150‹C. and heating con tinued for a further 2-3 hours. A water-soluble viscous product results. Further heating at 160-200‹C. gives an insoluble resin ; (7) the salt from hexamethylene diamine and imino thiolglycollic acid is treated as in Example 6 ; (8) 6-amino-thio-caproic acid is heated in phenol for 4-6 hours at 130-160‹C. in an atmosphere of nitrogen.
    • 50. 发明专利
    • Manufacture of wool like cellulosic material
    • GB268505A
    • 1927-04-07
    • GB404826
    • 1926-02-12
    • WILLIAM HARRISON
    • D01F2/08
    • 268,505. Harrison, W. Feb. 12, 1926. Fibres, treating; yarns, treating with liquids, gases, and vapours.-Cellulosic fibres such as cotton linen, ramie or jute whether in the form of fibres, yarns, &c. acquire many of the properties of wool by treating first with caustic alkali or alkali sulphide and carbon disulphide to form an unstable insoluble xanthate, and then converting the latter into a stable compound by treatment with a mild oxidising-agent which will not split off the carbon disulphide combined with cellulose. Suitable oxidizing-agents are nitrous acid or oxides of nitrogen, ferricyanides, iodine, and oxygen or air preferably in the presence of a catalyst such as oxides of iron, cobalt, nickel, or manganese; in the case of air it is necessary that the material should be moist, the air cold, and the treatment prolonged, or that a catalyst should be present. The carbon disulphide may be applied in the form of vapour, or in solution in an inert solvent such as benzene, and it mav be applied before or after treatment with caustic alkali &c. or simultaneously therewith in the form of an emulsion or collodial solution; and the material may or may not be subjected to tension during either of these treatments or during the subsequent washing-operation. The unstable xanthate. preferably after washing with or without the application of tension or after acidifying with a weak acid such as acetic acid, is subjected to treatment with the mild oxidizing-agent. The oxidized stable product, if coloured, may be decolourised by treatment with sulphurous acid. The dried product may be shrunk by treatment with ammonia, sodium sulphide, or sodium sulphite preferably in the presence of alkali. Specifications 19912/01, 126,174, 216,476 and 216,477 are referred to.